From nobody Wed Mar 22 17:42:32 2023 X-Original-To: freebsd-hackers@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4PhbRP6lxkz415qm for ; Wed, 22 Mar 2023 17:43:13 +0000 (UTC) (envelope-from karl@denninger.net) Received: from colo1.denninger.net (colo1.denninger.net [104.236.120.189]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4PhbRN4jFVz3v2k for ; Wed, 22 Mar 2023 17:43:12 +0000 (UTC) (envelope-from karl@denninger.net) Authentication-Results: mx1.freebsd.org; dkim=none; spf=pass (mx1.freebsd.org: domain of karl@denninger.net designates 104.236.120.189 as permitted sender) smtp.mailfrom=karl@denninger.net; dmarc=pass (policy=none) header.from=denninger.net Received: from denninger.net (097-081-026-048.res.spectrum.com [97.81.26.48]) by colo1.denninger.net (Postfix) with ESMTP id 92CD6211082 for ; Wed, 22 Mar 2023 13:42:36 -0400 (EDT) Received: from [192.168.10.25] (D15.Denninger.Net [192.168.10.25]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by denninger.net (Postfix) with ESMTPSA id 103E5378F3D for ; Wed, 22 Mar 2023 13:42:36 -0400 (EDT) Message-ID: Date: Wed, 22 Mar 2023 13:42:32 -0400 List-Id: Technical discussions relating to FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-hackers List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-hackers@freebsd.org MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.9.0 Subject: Re: Periodic rant about SCHED_ULE Content-Language: en-US To: freebsd-hackers@freebsd.org References: <202303221710.32MHAhe9047582@gndrsh.dnsmgr.net> <27f46bc2-54f8-f5aa-79ca-184e86d185d8@m5p.com> From: Karl Denninger In-Reply-To: <27f46bc2-54f8-f5aa-79ca-184e86d185d8@m5p.com> Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-512; boundary="------------ms010102080704090801020004" X-Spamd-Result: default: False [-5.66 / 15.00]; SIGNED_SMIME(-2.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_SHORT(-0.76)[-0.761]; DMARC_POLICY_ALLOW(-0.50)[denninger.net,none]; R_SPF_ALLOW(-0.20)[+mx]; MIME_GOOD(-0.20)[multipart/signed,multipart/alternative,text/plain]; MLMMJ_DEST(0.00)[freebsd-hackers@freebsd.org]; RCVD_VIA_SMTP_AUTH(0.00)[]; R_DKIM_NA(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; ASN(0.00)[asn:14061, ipnet:104.236.64.0/18, country:US]; MIME_TRACE(0.00)[0:+,1:+,2:+,3:~,4:~]; RCVD_COUNT_THREE(0.00)[3]; RCPT_COUNT_ONE(0.00)[1]; TO_DN_NONE(0.00)[]; FREEFALL_USER(0.00)[karl]; ARC_NA(0.00)[]; RCVD_TLS_LAST(0.00)[]; FROM_HAS_DN(0.00)[]; HAS_ATTACHMENT(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[freebsd-hackers@freebsd.org]; MID_RHS_MATCH_FROM(0.00)[] X-Rspamd-Queue-Id: 4PhbRN4jFVz3v2k X-Spamd-Bar: ----- X-ThisMailContainsUnwantedMimeParts: N This is a cryptographically signed message in MIME format. --------------ms010102080704090801020004 Content-Type: multipart/alternative; boundary="------------XBIDUhzG3d5td0cD89AjjoqM" --------------XBIDUhzG3d5td0cD89AjjoqM Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit On 3/22/2023 13:37, George Mitchell wrote: > On 3/22/23 13:10, Rodney W. Grimes wrote: >> [...] >> I dont even try ULE any more.  I just used 4BSD, as did bde@freebsd.org, >> ULE seems to suck when your have interactive use and compute bound on >> the same  box.  I have seen interactive in the past take seconds to >> echo a command.  IIRC ULE and zfs in a memory contrained environment >> dont play nicely togeather either. >> >> +1 on the return to 4BSD as the default scheduler >> > Thanks for the support and confirming I am not crazy!          -- George > Am I correct that toggling between these without a kernel build (or even at runtime) is not possible?  Been a minute since I've cared.... :-) -- Karl Denninger karl@denninger.net /The Market Ticker/ /[S/MIME encrypted email preferred]/ --------------XBIDUhzG3d5td0cD89AjjoqM Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 8bit
On 3/22/2023 13:37, George Mitchell wrote:
On 3/22/23 13:10, Rodney W. Grimes wrote:
[...]
I dont even try ULE any more.  I just used 4BSD, as did bde@freebsd.org,
ULE seems to suck when your have interactive use and compute bound on
the same  box.  I have seen interactive in the past take seconds to
echo a command.  IIRC ULE and zfs in a memory contrained environment
dont play nicely togeather either.

+1 on the return to 4BSD as the default scheduler

Thanks for the support and confirming I am not crazy!          -- George

Am I correct that toggling between these without a kernel build (or even at runtime) is not possible?  Been a minute since I've cared.... :-)

--
Karl Denninger
karl@denninger.net
The Market Ticker
[S/MIME encrypted email preferred]
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